CHROMABONDr C18 SPE columns, 70 mL, 10000 mg, polypropylene Features More than 50 different sationary phases available e.g., silica gel based: unmodified, C8, C
CHROMABONDr C18 ec SPE columns, 1 mL, 100 mg, Gilson ASPEC Features More than 50 different sationary phases available e.g., silica gel based: unmodified, C8, C